Democratic senators have grilled three of President Donald Trump’s cabinet picks during their confirmation hearings.

Donald Trump has tapped former acting attorney general Matthew Whitaker as U.S. ambassador to NATO, set to make him the nation’s representative to a bedrock Western alliance that the president-elect has repeatedly relished criticizing.

Matthew Whitaker is a pianist that has been mentored by the likes of Stevie Wonder; Jon Batiste has called him one of “the greatest” at this moment, and he’s already played in front of a sold-out crowd at the Apollo. Whitaker also happens to be just shy of 21 years old and blind.